Add python source build

.github/actions/build-python-from-source/action.yml

@@ -48,7 +48,9 @@ runs:
           git checkout ${{ inputs.python-version }}
         fi
 
+    # Do not rebuild python is we do not need to.
     - name: Cache Python built artifacts
+      if: "!contains(inputs.python-version, 'alpha')"
       uses: actions/cache@v3
       id: python-cache
       with:
@@ -133,6 +135,8 @@ runs:
 # This example shows how to use the Build Python from Source action in a GitHub workflow.
 # Replace 'your-workflow.yml' with the name of your actual workflow file.
 #
+# Note: if the python version has alpha in it then we clone the tip of main and do not cache.
+#
 # .github/workflows/your-workflow.yml
 # jobs:
 #   build:

.github/workflows/build.yml

@@ -83,11 +83,12 @@ jobs:
       # action os set it here for consistency if not building from source.
       - name: Set LOCAL_PYTHON envvar
         if: matrix.build-from-source == false
-        run: echo "LOCAL_PYTHON=python" >> $GITHUB_ENV
         shell: bash
+        run: echo "LOCAL_PYTHON=python" >> $GITHUB_ENV
 
       # Upgrade pip to the latest version.
       - name: Upgrade pip
+        shell: bash
         run: |
           $LOCAL_PYTHON -m pip install --upgrade pip
 
@@ -98,11 +99,13 @@ jobs:
 
       # Install dependencies required for building and testing.
       - name: Install dependencies
+        shell: bash
         run: |
           $LOCAL_PYTHON -m pip install --upgrade setuptools wheel
 
       # Build the wheel package with or without nogil suffix.
       - name: Build
+        shell: bash
         run: |
           $LOCAL_PYTHON -P setup.py bdist_wheel
           #if [ "${{ matrix.build-from-source }}" = "true" ]; then
@@ -112,17 +115,17 @@ jobs:
             #  mv "$file" "${file%.whl}_nogil.whl"
             #done
           #fi
-        shell: bash
 
       # Install the built wheel package so we can test it.
       - name: Install wheel
+        shell: bash
         run: |
           $LOCAL_PYTHON -m pip install build/dist/*.whl
-        shell: bash
         working-directory: ${{github.workspace}}
 
       # Run all the tests and benchmarks.
       - name: Test
+        shell: bash
         run: |
           mkdir test_dir
           cd test_dir